import {
  aggregateAcrossTeams,
  formatAggregationResult,
  loopGet,
} from "../lib/loop-api.js";

// ─── Loop API V2: /people/{id} ─────────────────────────────────
// Fields: id, title, firstName, lastName, contactNotes,
//   primaryPhone, primaryPhoneType, primaryEmail, primaryEmailType,
//   dateCreated, houseNameOrNumber, houseSecondaryNameOrNumber,
//   street, locality, town, district, county, postcode,
//   buyerProfiles[], sellerProfiles[], renterIds[], landlordIds[],
//   gdpr*, communication*
// ────────────────────────────────────────────────────────────────
interface LoopPersonDetail {
  id: number;
  title?: string;
  firstName?: string;
  lastName?: string;
  contactNotes?: string;
  primaryPhone?: string;
  primaryPhoneType?: string;
  primaryEmail?: string;
  primaryEmailType?: string;
  dateCreated?: string;
  houseNameOrNumber?: string;
  houseSecondaryNameOrNumber?: string;
  street?: string;
  locality?: string;
  town?: string;
  district?: string;
  county?: string;
  postcode?: string;
  buyerProfiles?: LoopBuyerProfileRef[];
  sellerProfiles?: LoopSellerProfileRef[];
  renterIds?: number[];
  landlordIds?: number[];
  [key: string]: unknown;
}

interface LoopBuyerProfileRef {
  id: number;
  buyerGroupName?: string;
  maxPrice?: number | null;
  minBeds?: number;
  viewingCount?: number;
  offerCount?: number;
  [key: string]: unknown;
}

interface LoopSellerProfileRef {
  id: number;
  sellerGroupName?: string;
  propertyId?: number;
  propertyAddress?: string;
  price?: number;
  propertyStatus?: string;
  [key: string]: unknown;
}

// ─── Loop API V2: /people/buyers/{id} ──────────────────────────
// Fields: id, buyerGroupName, buyerIsGroup, maxPrice, minBeds,
//   position, requirementNotes, sellingPosition, purchaseReason,
//   financiallyVerified, mortgageOffered, insuranceOffered,
//   people[] (nested PersonSummary), propertyTypes[], searchAreas[],
//   viewings[], offers[]
// ────────────────────────────────────────────────────────────────
interface LoopBuyerDetail {
  id: number;
  buyerGroupName?: string;
  buyerIsGroup?: boolean;
  maxPrice?: number | null;
  minBeds?: number;
  position?: string;
  requirementNotes?: string;
  sellingPosition?: string | null;
  purchaseReason?: string | null;
  financiallyVerified?: string | null;
  mortgageOffered?: string | null;
  insuranceOffered?: string | null;
  people?: LoopNestedPerson[];
  propertyTypes?: string[];
  searchAreas?: string[];
  viewings?: Record<string, unknown>[];
  offers?: Record<string, unknown>[];
  [key: string]: unknown;
}

// ─── Loop API V2: /people/sellers/{id} ─────────────────────────
// Fields: id, sellerGroupName, sellerIsGroup,
//   people[] (nested PersonSummary), property (nested PropertySummary)
// ────────────────────────────────────────────────────────────────
interface LoopSellerDetail {
  id: number;
  sellerGroupName?: string;
  sellerIsGroup?: boolean;
  people?: LoopNestedPerson[];
  property?: Record<string, unknown>;
  [key: string]: unknown;
}

interface LoopNestedPerson {
  id: number;
  title?: string;
  firstName?: string;
  lastName?: string;
  contactNotes?: string;
  primaryPhone?: string;
  primaryPhoneType?: string;
  primaryEmail?: string;
  primaryEmailType?: string;
  [key: string]: unknown;
}

type PeopleRole = "buyers" | "sellers" | "renters" | "landlords";

export async function peopleDetail(params: {
  accountId: string;
  personId: number;
  role?: PeopleRole;
  teamName?: string;
}): Promise<string> {
  const { accountId, personId, role, teamName } = params;

  const result = await aggregateAcrossTeams<Record<string, unknown>>(
    accountId,
    "people",
    "loop-people-detail",
    async (apiKey, team) => {
      const basePath = role ? `/people/${role}` : "/people";
      const path = `${basePath}/${personId}`;
      const data = await loopGet<Record<string, unknown>>(apiKey, path, "loop-people-detail", team);
      if (data && typeof data === "object" && !Array.isArray(data)) {
        return [data];
      }
      return [];
    },
    { teamName }
  );

  return formatAggregationResult(
    result,
    (record) => formatDetailRecord(record, role),
    "person details"
  );
}

function formatDetailRecord(record: Record<string, unknown>, role?: PeopleRole): string {
  if (role === "buyers") {
    const p = record as unknown as LoopBuyerDetail;
    const lines = [`**${p.buyerGroupName ?? "Unknown"}** [ID: ${p.id}]`];
    if (p.maxPrice != null) lines.push(`Max price: £${p.maxPrice.toLocaleString("en-GB")}`);
    if (p.minBeds) lines.push(`Min beds: ${p.minBeds}`);
    if (p.position && p.position !== "none") lines.push(`Position: ${p.position}`);
    if (p.sellingPosition) lines.push(`Selling position: ${p.sellingPosition}`);
    if (p.purchaseReason) lines.push(`Purchase reason: ${p.purchaseReason}`);
    if (p.financiallyVerified) lines.push(`Financially verified: ${p.financiallyVerified}`);
    if (p.mortgageOffered) lines.push(`Mortgage: ${p.mortgageOffered}`);
    if (p.requirementNotes) lines.push(`Requirements: ${p.requirementNotes}`);
    if (p.propertyTypes?.length) lines.push(`Property types: ${p.propertyTypes.join(", ")}`);
    if (p.searchAreas?.length) lines.push(`Search areas: ${p.searchAreas.join(", ")}`);
    if (p.viewings?.length) lines.push(`Viewings: ${p.viewings.length}`);
    if (p.offers?.length) lines.push(`Offers: ${p.offers.length}`);

    if (p.people?.length) {
      lines.push(`\n**Contacts (${p.people.length}):**`);
      for (const person of p.people) {
        const name = [person.firstName, person.lastName].filter(Boolean).join(" ");
        const phone = person.primaryPhone ?? "";
        const email = person.primaryEmail ?? "";
        const contact = [phone, email].filter(Boolean).join(" | ");
        lines.push(`  - ${name} [ID: ${person.id}]${contact ? ` — ${contact}` : ""}`);
      }
    }
    return lines.join("\n");
  }

  if (role === "sellers" || role === "landlords") {
    const p = record as unknown as LoopSellerDetail;
    const lines = [`**${p.sellerGroupName ?? "Unknown"}** [ID: ${p.id}]`];

    if (p.property) {
      const prop = p.property;
      if (prop.propertyAddress) lines.push(`Property: ${prop.propertyAddress}`);
      if (prop.price != null) lines.push(`Price: £${Number(prop.price).toLocaleString("en-GB")}`);
      if (prop.status) lines.push(`Status: ${prop.status}`);
      if (prop.propertyType) lines.push(`Type: ${prop.propertyType}`);
      if (prop.propertyId || prop.id) lines.push(`Property ID: ${prop.propertyId ?? prop.id}`);
    }

    if (p.people?.length) {
      lines.push(`\n**Contacts (${p.people.length}):**`);
      for (const person of p.people) {
        const name = [person.firstName, person.lastName].filter(Boolean).join(" ");
        const phone = person.primaryPhone ?? "";
        const email = person.primaryEmail ?? "";
        const contact = [phone, email].filter(Boolean).join(" | ");
        lines.push(`  - ${name} [ID: ${person.id}]${contact ? ` — ${contact}` : ""}`);
      }
    }
    return lines.join("\n");
  }

  // Generic /people/{id} — PersonDetail schema
  const p = record as unknown as LoopPersonDetail;
  const title = p.title?.trim() ? `${p.title.trim()} ` : "";
  const name = [p.firstName, p.lastName].filter(Boolean).join(" ") || "Unknown";
  const lines = [`**${title}${name}** [ID: ${p.id}]`];

  if (p.primaryEmail) lines.push(`Email: ${p.primaryEmail}`);
  if (p.primaryPhone) lines.push(`Phone: ${p.primaryPhone}`);
  if (p.dateCreated) lines.push(`Created: ${p.dateCreated.split("T")[0]}`);

  // Build address from components
  const addrParts = [
    p.houseSecondaryNameOrNumber,
    p.houseNameOrNumber,
    p.street,
    p.locality,
    p.town,
    p.postcode,
  ].filter(Boolean);
  if (addrParts.length) lines.push(`Address: ${addrParts.join(", ")}`);

  if (p.contactNotes) lines.push(`Notes: ${p.contactNotes}`);

  if (p.buyerProfiles?.length) {
    lines.push(`\n**Buyer profiles (${p.buyerProfiles.length}):**`);
    for (const bp of p.buyerProfiles) {
      const bpName = bp.buyerGroupName ?? `Buyer ${bp.id}`;
      const price = bp.maxPrice != null ? ` max £${bp.maxPrice.toLocaleString("en-GB")}` : "";
      lines.push(`  - ${bpName} [ID: ${bp.id}]${price}`);
    }
  }
  if (p.sellerProfiles?.length) {
    lines.push(`\n**Seller profiles (${p.sellerProfiles.length}):**`);
    for (const sp of p.sellerProfiles) {
      const spName = sp.sellerGroupName ?? `Seller ${sp.id}`;
      const addr = sp.propertyAddress ? ` — ${sp.propertyAddress}` : "";
      lines.push(`  - ${spName} [ID: ${sp.id}]${addr}`);
    }
  }

  return lines.join("\n");
}